void setup() {
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);

}

void loop() {
  digitalWrite(0, HIGH);
  delay(15000);
  digitalWrite(0, LOW);
  digitalWrite(1, HIGH);
  delay(5000);
  digitalWrite(1, LOW);
  digitalWrite(2, HIGH);
  delay(10000);
  digitalWrite(2, LOW);

}